Sound waves

Front

What is the term for the speed at which sound travels through different mediums?

Back

Speed of sound.

Front

In which medium does sound travel the fastest?

Back

Solids, because the molecules are closer together.

Front

What is a natural environment where sound cannot travel?

Back

Outer space.

Front

What causes sound to be produced?

Back

A source of energy forces matter to vibrate.

Front

What determines the pitch of a sound wave?

Back

Frequency.

Front

How does frequency relate to the pitch of a sound?

Back

Greater frequency results in a higher pitch.

Front

What is the relationship between wavelength and frequency in sound waves?

Back

Wavelength is inversely proportional to frequency; as frequency increases, wavelength decreases.

Front

What is the unit of measurement for frequency?

Back

Hertz (Hz).

Front

What is the phenomenon called when sound waves bounce off a surface?

Back

Reflection.

Front

What is the term for the change in frequency or wavelength of a wave in relation to an observer moving relative to the wave source?

Back

Doppler effect.